SECURITY FOR BUILDERS

The security boundary
AI agents are missing.

HOUND watches every process AI coding agents spawn, every file they touch, every network connection they open. When something exceeds its scope, HOUND blocks it.

Download for Mac See how it works ↓
macOS 13 or later  ·  Apple Silicon & Intel  ·  Free
THE PROBLEM

AI agents run with your full permissions.

When you run an AI tool, the agent executes with every permission you have. It can read your SSH keys, install startup items, and make network connections — and you won't know unless something breaks.

A compromised package runs its post-install script. An AI agent follows a malicious instruction injected into its context. A trojanized tool executes in your CI pipeline. Your credentials are gone before you notice anything is wrong.

Existing security tools are built to detect known malware. They have no model of what an AI coding agent is supposed to do versus what it should never do. That gap is what HOUND is built to close.

0
seconds of warning developers get before a compromised post-install script runs
100%
of AI agent sessions run with the same permissions as the developer who invoked them
WHO IT'S FOR

Built for people who build things.

You are not a security engineer. You are a developer, a founder, a maker. You are moving fast, shipping code, using every tool available — including AI agents that can write and execute code faster than you can review it.

That speed is your advantage. It should not also be your vulnerability. HOUND runs quietly in the background so you can keep moving — and know that something is watching the parts you cannot.

You should not have to choose between building fast and building safely. HOUND is for everyone who refuses to make that choice.

The solo founder
Building a product alone. Using AI to move at the speed of a team. You need to know nothing slipped through.
The startup engineer
Shipping fast, installing packages, running automation. Your threat surface grows every day. HOUND keeps up with it.
The curious builder
Running AI tools, testing ideas, executing scripts from the internet. You want to explore without wondering what just ran on your machine.
HOW IT WORKS

A security boundary around every agent session.

01
Session detection
The moment Claude Code, Cursor, or any AI agent starts, HOUND opens a session. Every process it spawns, every child process of those processes, is attributed to that session via process tree walking.
02
Scope evaluation
HOUND reads your project — package.json, Cargo.toml, .env.example — and infers what's normal. An npm install connecting to the npm registry is expected. The same process reading your SSH keys is not.
03
Enforcement
Hard limits block universally-dangerous actions regardless of context. Scope violations flag anomalies. Critical violations are terminated immediately. You get a plain-English trace of everything that happened.
Claude Code HOUND ✓ Allowed npm · files · known net ✗ Blocked ~/.ssh · LaunchAgents
WHAT HOUND PROTECTS AGAINST

Hard limits. No exceptions.

Some actions are never legitimate for an AI coding session. HOUND enforces these unconditionally.

T1552.004
Credential theft
SSH keys, AWS credentials, Kubernetes configs, API tokens. No AI agent session should ever read these.
T1543.001
Persistence installation
LaunchAgents, LaunchDaemons, login items, cron jobs. If an agent installs a startup item, HOUND blocks it.
T1195.002
Supply chain attacks
Post-install scripts that download and execute remote payloads. Compromised packages that phone home during installation, caught in real time.
T1071
Unknown network connections
Connections outside the project's declared scope. If your React app's npm install reaches an unknown server, you'll know.
T1548.003
Privilege escalation
sudo invocations, user account creation, group membership changes. Never legitimate in an AI coding session.
T1562.001
Security tool tampering
Any attempt to kill or disable security processes is blocked and flagged immediately.
T1041
Data exfiltration
Staging directories, suspicious archive creation, upload commands targeting unknown hosts.
T1552
Code vulnerabilities
Generated code scanned for hardcoded secrets, injection vulnerabilities, missing authentication. What the AI didn't mention.
THE TRACE

Every session gets a trace.

Not just alerts. A complete plain-English record of what the agent did, what it touched, and whether anything looked wrong.

Claude Code session CLEAN ✓
4 minutes ago  ·  23 events
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
WHAT RAN
Built a REST API endpoint. Installed 2 packages.
Ran the build system. All within expected scope.
FILES CHANGED
+ src/api/users.ts                       created
+ src/api/users.test.ts                  created
~ package.json                         modified
~ tsconfig.json                        modified
NETWORK
registry.npmjs.org                   ✓ package download
api.github.com                       ✓ repository check
CREDENTIALS ACCESSED
none
VERDICT
Everything is consistent with what this task should do.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
npm install dev-utils BLOCKED ✗
47 minutes ago  ·  31 events
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
VIOLATION  ·  CRITICAL
Post-install script attempted to read ~/.aws/credentials.
Process terminated. File access denied.
Technical: npm (pid 84291) → /Users/dane/.aws/credentials
NETWORK
registry.npmjs.org                   ✓ package download
185.220.101.47:443                   ✗ unknown server
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Coming Soon.

HOUND is currently in private beta.
Request early access above to be notified when it's ready.

HOUND
Version 0.1.0  ·  macOS 13+  ·  Apple Silicon & Intel
In development · Private beta
macOS 13 or later  ·  Apple Silicon & Intel
  • All enforcement runs locally. Nothing leaves your machine.
  • No account required. No telemetry without consent.